Thanks for posting this, Sewbizgirl and also FelineFanatic about it traveling up the needle bar. It made a light bulb go off in my head. Every now and then I get threadlock problems in my embroidery machine, and it's common to use spray baste for that. It's part of many instructions for projects. What I now think is happening is that the gunk above the needle snags thread and when it recoils up above it gets caught. I'm definitely going to be taking preventive action. Never know what useful stuff I might pick up on this board, and I'm grateful to all who share information and advice!

BTW, for quilting I've mostly weaned myself off the spray. I really like the method with long pins and ear plugs. Spray is expensive and I worry about prolonged exposure.

“You can’t use up creativity. The more you use, the more you have.” ~Maya Angelou.
One's mind, once stretched by a new idea, never regains its original dimensions. ~Oliver Wendell Holmes, Sr.

From the Aleene's website there are 3 Tacky Sprays but only 1 for fabric and it is permanent. So definitely not the same as basting spray. I like 505 best - found a bargain on Dritz basting spray but I did not like quilting through it.
Hope you can get the gunk off SBG!

Definitely not a basting spray. All basting sprays will have baste or temp adhesive on the label and all wash out so water will remove basting spray if on your machine. I have tried the new basting powder and it's great. No spray!

I believe giving what I can will never cause me to be in need.Being cheap is not a badge of honor.My heroes are working people, paying their own way, taking care of their children and being decent human beings.

I couldn't find the Un-Du at Walmart so I bought something else that looked as good. It's called Goof Off. It worked like magic! I just drizzled it on the sticky parts and then stuffed a little cotton swatch in to clean. All the junk came off. It seemed to dissolve the sticky stuff on contact, first try. Great stuff!

So, I can quilt again! Thanks for your help with my problem, everyone who responded.

I'll have to look for the Goo Off, haven't seen that before. I don't like Goo Gone, it stinks.

I believe giving what I can will never cause me to be in need.Being cheap is not a badge of honor.My heroes are working people, paying their own way, taking care of their children and being decent human beings.

Yes! Goof Off has a very strong fume and is very flammable. You should try not to breathe it. But it worked wonders. I don't like Goo Gone because you have to scrub and scrub, and then do it again. It's not strong enough.